import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'

//导入字体图标
import '../assets/fonts/iconfont.css'
//导入全局样式表
import '../assets/css/global.css'

import axios from 'axios'
//配置请求的根路径
axios.defaults.baseURL = 'https://lianghj.top:8888/api/private/v1/'
axios.interceptors.request.use(config => {
  config.headers.Authorization = window.sessionStorage.getItem('token')
  //在最后必须return config
  return config
})
Vue.prototype.$http = axios
Vue.use(VueRouter)

const routes = []

const router = new VueRouter({
  routes: [
    { path: '/', redirect: "/login" },
    { path: '/login', component: Login },
    {
      path: '/home', component: Home,
      redirect: '/welcome',
      children: [
        { path: '/welcome', component: Welcome },
        { path: '/users', component: Users }
      ]
    }
  ]
})

//挂在路由导航守卫
router.beforeEach((to, from, next) => {
  //to 将要访问的路径
  //from 从哪个路径跳转而来
  //next 函数，表示放行。直接调用就是放行！         next（‘/login’）强制跳转
  if (to.path === '/login') return next();
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login');
  next();
})

export default router
